British Journal of Anaesthesia, 1985, Vol. 57, No. 4 412-419
© 1985 The Board of Management and Trustees of the British Journal of Anaesthesia
research-article |
ZOMEPIRAC, DIHYDROCODEINE AND PLACEBO COMPARED IN POSTOPERATIVE PAIN AFTER DAY-CASE SURGERY
The relationship between the effects of single and multiple doses
Pain Relief Research Unit, Oxford Regional Pain Relief Unit, Abingdon Hospital Abingdon, Oxford OX14 1AG
Nuffield Department of Surgery, John Radcliffe Hospital Oxford
Correspondence to H. J. McQ.
Zomepirac 100 mg and dihydrocodeine 30 mg were compared with placebo in a controlled randomized, double-blind, single-dose postoperative study. Patients continued to receive either zomepirac or dihydrocodeine for pain relief for 5 days at home in a double-blind study, being allowed to titrate the consumption of tablets to their degree of pain. The efficacy and side effects of the medication were evaluated. In the singledose phase, both active treatments were significantly better than placebo. In the multiple dosing phase, zomepirac was statistically better than dihydrocodeine. Non-parametric statistical tests indicated highly significant correlations between single- and multiple-dose analgesic measurements for both zomepirac and dihydrocodeine.